Corrosion behavior of steel bar embedded in fly ash concrete

被引：147

作者：

Choi, Yoon-Seok

Kim, Jung-Gu

Lee, Kwang-Myong

机构：

[1] Sungkyunkwan Univ, Dept Adv Mat Engn, Suwon 440746, South Korea

[2] Sungkyunkwan Univ, Dept Civil & Environm Engn, Suwon 440746, South Korea

来源：

CORROSION SCIENCE | 2006年 / 48卷 / 07期

关键词：

corrosion; fly ash; chloride ion; permeability; EIS;

D O I：

10.1016/j.corsci.2005.05.019

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Steel bar embedded in concrete Without fly ash and with fly ash was tested under complete immersion, in 3.5wt.% NaCl solution. Monitoring of open-circuit potential, polarization resistance measurement and electrochemical impedance spectroscopy (EIS) were used to evaluate the corrosion behavior of steel bar. ASTM C1202 test method was also used to estimate the concrete's resistance to the penetration of chloride ions. The results obtained from electrochemical tests show that partial replacement of fly ash has led to an enhancement of corrosion resistance and a reduction of corrosion rate due to the decrease of permeability to chloride ions. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：1733 / 1745

页数：13

共 26 条

[1]

*ASTM, 1994, 87691 ASTM C

[2]

*ASTM, 1994, 120291 ASTM C

[3]

Bastidas JM, 2000, MATER CORROS, V51, P712, DOI 10.1002/1521-4176(200010)51:10<712::AID-MACO712>3.0.CO

[4]

2-V

[5]

Broomfield J.P, 1997, CORROSION STEEL CONC, P22

[6] Investigation of passivity and its breakdown on Fe3Al-Cr--Mo intermetallics in thiosulfate-chloride solution [J].

Choi, YS ;

Kim, JG .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2002, 333 (1-2) :336-342

[7] Effect of the number of ECAP pass time on the electrochemical properties of 1050 Al alloys [J].

Chung, MK ;

Choi, YS ;

Kim, JG ;

Kim, YM ;

Lee, JC .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2004, 366 (02) :282-291

[8] Corrosion behavior of steel in concrete made with slag-blended cement [J].

Dehghanian, C .

CORROSION, 1999, 55 (03) :291-296

[9] Studies of structural disorder of self-assembled thiol monolayers on gold by cyclic voltammetry and ac impedance [J].

Diao, P ;

Jiang, DL ;

Cui, XL ;

Gu, DP ;

Tong, RT ;

Zhong, B .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1999, 464 (01) :61-67

[10]

EVERETT LH, 1982, CORROS PREVENT CONTR, V1, P5

← 1 2 3 →